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How do you find the length of third side of a triangle given two sides and permeter of the triangle?
Wiki User
∙ 13y ago
Subtract the two side lengths from the perimeter.
The perimeter of a triangle is just the length of the 3 sides added together.
Eg.
Q: A triangle has a perimeter of 20 m. One side is 5m and another is 10m. How long is the 3rd side?
A: Perimeter - side 1 - side 2 = side 3
Side 3 = 20 - 5 - 10 = 5 m
Wiki User
∙ 13y ago
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How do you find the perimeter of a triangle when all three sides are given?
If you have the length of each of the three sides of a triangle, you can find the perimeter of (the distance around) the triangle by adding the length of the sides. Their sum will be the perimeter of this geometric shape.
How do you find the permeter of a polygon?
The perimeter of a polygon is the sum of the length of each of its sides. If the polygon is a regular polygon the you can calculate the perimeter as [number of sides] *[the length of one side]
What is a triangle with two sides of equal length?
An isosceles triangle is a triangle that has two sides of equal length.
Name a triangle with no two sides equal in length?
A Scalene triangle has no sides of equal length.
What kind of triangle has 2 sides that are the same length?
The kind of triangle with two sides the same length is an isosceles triangle.
How do you find the permeter?
By adding the length of all the sides.
How do you find the perimeter of a triangle if one side is 3?
it depends on the triangle.if it is a "pure" triangle (symetrical on all sides) then the permeter is 9
How do you find the perimeter of a triangle when all three sides are given?
If you have the length of each of the three sides of a triangle, you can find the perimeter of (the distance around) the triangle by adding the length of the sides. Their sum will be the perimeter of this geometric shape.
What is the name given to a triangle with sides of equal length?
equal lateral
How do you find the permeter of a polygon?
The perimeter of a polygon is the sum of the length of each of its sides. If the polygon is a regular polygon the you can calculate the perimeter as [number of sides] *[the length of one side]
What is a triangle with two sides of equal length?
An isosceles triangle is a triangle that has two sides of equal length.
What is a triangle in which 2 sides are the same length?
An isosceles triangle is a triangle with two sides of equal length.
How do you find the perimeter if you don't know the area?
You can find the permeter if you know the length of the sides. You need to add the lengths of all the sides together.
What type of triangle has two sides the same length?
If only two sides of a triangle are the same length it is an isosceles triangle. If all three sides are the same length it is an equilateral triangle.
Does a scalene triangle have no sides of the same length?
No sides of a scalene triangle are the same length.
How do you describe the possible lengths of the third side of a triangle when the other tw sides are given?
The length of the third side must be greater than the difference between the length of the two given sides and it must be less than the sum of the two given sides. These limits can be derived from the fact that any two sides of a triangle must have a combined length greater than the third side.
How do you name the name a triangle by the length of its sides?
If all of its sides are the same length its an equilateral triangle. If only two of its sides are the same length it is an isosceles triangle. If all the sides are different lengths it is a scalene triangle
